Bridge/CRB Index Hits
Lowest Level in Decades

Commodities prices as a group fell to 21 1/2-year lows as factors ranging from Brazil's uncertain economic future to warm weather in the U.S. came together to push markets down.

Prices as a group have fallen steadily for two weeks, riding a wave of pessimism that started with Brazil's currency devaluation. The slide has been interrupted only by isolated rallies in markets such as lumber. The Bridge/Commodity Research Bureau index of spot prices, a widely watched benchmark, settled at 187.60, down 0.94 -- its lowest level...